A) To avoid getting your eyelashes dirty.
B) To protect your eyes from potential chemical splashes or spills.
C) To look more professional in the lab.
D) Because it is a fashion trend among scientists.

A) To ensure safety, accuracy, and reproducibility of the results.
B) To waste time in the lab.
C) To make the experiment more challenging.
D) To demonstrate your independence from guidelines.

A) A group that cheats in the experiment.
B) A group that does the experiment first.
C) A group in which the variable being tested is not applied, used as a baseline for comparison.
D) A group that controls the experiment.

A) To impress your classmates.
B) To confuse the data analysis.
C) To show off your math skills.
D) To ensure the reliability and validity of the results.

A) Independent variables.
B) Constant variables.
C) Dependent variables.
D) Control variables.

A) Ruler
B) Stopwatch
C) Balance
D) Thermometer

A) To provide a summary of the experiment after completion.
B) To confuse the experimental process.
C) To provide a testable prediction about the outcome of the experiment.
D) To make the experiment last longer.

A) To discourage further experimentation.
B) To waste time and resources in the lab.
C) To ensure that the results are consistent and not due to chance or errors.
D) To confuse the validity of the initial results.